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Finding the Fourth Proportional to 127.67, 175.78 and 116.08

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Solution

The fourth proportional to 127.67, 175.78 and 116.08 is: 159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.67 : 175.78 = 116.08 : x
  2. Step 2: Convert to fraction form
    127.67/175.78 = 116.08/x
  3. Step 3: Cross multiply
    127.67x = 175.78 × 116.08
  4. Step 4: Simplify right side
    127.67x = 20,404.54
  5. Step 5: Solve for x
    x = 20,404.54/127.67
  6. Step 6: Final answer
    x = 159.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.